TECHNOLOGY AND ENGINERRING SKILL DEPARTEMEN PROGRAM : BUILDING TECHNOLOGY SKILL COMPETENCE : DRAWING BUILDING TECHNOLOGY

Drawing stair construction BASIC COMPETENCY To describe the stair construction To design the stair cnstruction To draw the concrete stair construction To draw the reinforcement of concrete stair To draw the stair construction and wood railling To draw stair construction and steel railling To describe kinds of stair construction Teknologi dan Rekayasa

Menggambar Konstruksi Tangga Drawing stair construction A. Description of stair construction A stair has an important role in the past time. It could make someone more prestige. Recently stairs are not luxurious things. Someone make a stair because of having no enough land to make a house. Teknologi dan Rekayasa

Drawing a staur construction Drawing stair construction Stairs should have to the following requirement : It is set in the reachable location and everybodi can pass it. It has enough light that come into the house Easy to do It is very simple and comfortable to have. Teknologi dan Rekayasa

Drawing stair construction The stair has function to connect the first floor and the others The corner of the stair that very easy to pass has resemblance about 40. If it has resemblance more than 45, it will be dangerous when the walkers down stair. Teknologi dan Rekayasa

Drawing stair construction In order that the stair comfortable, the size of off-tread and on-tread have to be in balance. Teknologi dan Rekayasa

Drawing stair construction B. Designing Stair Construction To design the concrete stair, should be started from planning a map and setting the stairs. The reinforce of the stairs can be abtained Teknologi dan Rekayasa

Drawing stair construction Consideration The reach of adult people about 57 -60 cm based on the research, when someone tread his foot in vertical for certain tall is needed twice when he/she wants to up-stair or down stair Teknologi dan Rekayasa

Drawing stair construction Example: A flat building with high floor 3,50 m optrade stair is vertically (optrade) is estimated 18 cm. So the amount of optrade = 350 : 18 = 18, 4 pieces becomes = 19 pieces so its optrade becomes = 350 : 19 = 18,4 cm. This measerement must be searched well to become milimeter measurement. Teknologi dan Rekayasa

Drawing stair construction According to opstrade formula : - 1 aantrade + 2 optrade = 57 – 60 cm The width aantrade (57 a’ 60 ) – 2 x 18,4 = 20, 2 a’ 23,2 cm in this measurement become about 20 dan 23 cm. (symlified) 1 aantread + 2 optread = 57 – 60 cm The width is (57 a’60) A possible stair is likely passed by : – Passed 1 person is ± 80 cm wide – Passed 2 person is ± 120 cm wide – Passed 3 person is ± 160 cm wide Teknologi dan Rekayasa

Menggambar Konstruksi Tangga Menggambar Konstruksi Tangga The formula of making srair: 1 An antrade + 2 Optrade = 57 to 60 cm Teknologi dan Rekayasa

Drawing stair construction He step of calculating stair : To define the burden of stair plats To coumt the burden of stair To count moment of stair plat To define the material of plat board To count the burden of plat board To count the reinforce of stair plat and plat boarder To count the control of defence To count the control of movable Teknologi dan Rekayasa

Drawing stair construction C. Drawing stair construction of concrete Teknologi dan Rekayasa

Drawing stair construction Picture of concrete stair construction Source: Guidance of practicing construction buiding, DPMK, Jakarta Teknologi dan Rekayasa

Menggambar Konstruksi Tangga Drawing stair construction D. To draw the reenforce staur construction Teknologi dan Rekayasa

Drawing stair construction Drawing stair construction Picture of construction of reinforcing stair Teknologi dan Rekayasa

Drawing stair construction Teknologi dan Rekayasa

Drawing stair construction Teknologi dan Rekayasa

Drawing stair construction Teknologi dan Rekayasa

Drawing stair construction E. Drawing stair construction and wooden railling stairs in the past time had an important roles that make someone more prestige. The material from wood is nearly used because such a material tends to be rarer and the prize will be more expensive. Teknologi dan Rekayasa

Drawing stair construction Something has to get paying attention in making stair is : – Quality of material – Joining must be well – Getting enough information – Finishing Teknologi dan Rekayasa

Drawing stair construction Stairs in detailed Picture of Detail stair a Teknologi dan Rekayasa

Menggambar Konstruksi Tangga Drawing stair construction Picture of Detail stair b Teknologi dan Rekayasa

Drawing stair construction Teknologi dan Rekayasa

Drawing stair construction Picture of Detail stair c Teknologi dan Rekayasa

Drawing stair construction Teknologi dan Rekayasa

Drawing stair construction Picture of Detail stair d Teknologi dan Rekayasa

Drawing stair construction Picture of Detail stair e Teknologi dan Rekayasa

Drawing stair construction F. Drawing The Construction Of Steel Stairs Basically, the steel construction of stairs and those made of wood are the same, The difference is of the material. Steel staurs s are frequently used in the place that has strong trembling. Teknologi dan Rekayasa

Drawing stair construction The type of profile for steel stairs are frequently linked to the head of stairs and then connected to knee of steel To join the the head of the stairs and the stairs by using nail, scrambled object and electric power. Teknologi dan Rekayasa

Drawing stair construction On construction with weld can be formed simply, because correlation of its construction is easy. At stair opstrade uses wooden plank material of thickness about 3 cm or thin steel plate which is joined with woodwn material by using nuts and bolts which is joined with elbow steel. The lower edge is cut flatly and given place. Teknologi dan Rekayasa

Drawing stair construction Picture of construction steel stair Teknologi dan Rekayasa

Drawing stair construction Picture of stair trap with thin steel Teknologi dan Rekayasa

Drawing stair construction G. Drawing forms of stair structure Kinds of stairs: Straaight stairs, the treads are vertical, straight on the thumb Slanting stair, the stairs are the same in width Wind-mill stairs, the treads are not the same in size, not vertical Teknologi dan Rekayasa

Drawing stair construction Round stairs, the stairs are round following the holders – Junktive stairs – Board stairs Teknologi dan Rekayasa

Drawing stair construction Kinds of Stair Forms Picture of Bordes stair with two handles Teknologi dan Rekayasa

Drawing stair construction Gambar. Tangga Bordes Tiga Lengan Teknologi dan Rekayasa

Drawing stair construction Picture of Crossing two Stairs Teknologi dan Rekayasa

Drawing stair construction Picture of crossing begginer stair Teknologi dan Rekayasa

Drawing stair construction Picture Stair with ending crossing Source: Pictures of building science Bridge, Yogyakarta Teknologi dan Rekayasa

Drawing stair construction FINISH Teknologi dan Rekayasa

Menggambar Konstruksi Tangga TERIMA KASIH Compiled by : Rina D. Kania.S.Pd SMK Negeri 2 Tasikmalaya Teknologi dan Rekayasa